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Fthesubject 0 INTRODUCTION AND PROPOSED DEVELOPMENT e and Subsurface Contamination Report (SSCR) contains the results of my findings for roperty locatedat 10549 and 10749 North Jack Tone Road, southeast of Lodi, California. This report was prepared for the owners of the property: Ms. Jacqueline Polk, who is Jack Tone's daughter, Mr. John Polk and Ms. Theresa Polk- the children of Jacqueline Polk, Jeff Sanguinetti of A.R. Sanguinetti &Associates - the engineer for the project, and the San Joaquin County Environmental Health Department (EHD). The purpose of this Report is to investigate and identify real or potential surface and subsurface contamination existing within, or around the entire subject property. i Within the text of this Report, bolded Section (§) numbers are referenced at the beginning of an applicable Section number, sentence, paragraph or Appendices that correspond with the EHD Requirements Checklist for Surface and Subsurface Contamination Reports. According to the San Joaquin County Development Title, a Surface and Subsurface Contamination Report is required at the time of Tentative Map submittal. The Development Title, Section 9-905.12 (a) states "A Surface and Subsurface Contamination Report shall identify any potential sources of surface and subsurface contamination caused by past or current land uses." The report shall include evaluation of nonpoint sources of hazardous materials including agricultural chemical residues and nitrate concentrations in the underlying groundwater. Potential point sources include fuel tanks, discarded items, past and present on-site septic systems, agrichemical applications, lead paint, asbestos, and electrical transformers. No chemical analysis was conducted by Chesney Consulting for this investigation, nor was there an inspection and testing of the on-site existing buildings for asbestos containing materials (ACMs) and/or lead paint since the structures are all relatively new. Interpretation of County Ordinance Section 9-905.12 (a) has been to focus on the subject property exclusively, unless it is documented or observed that an environmental concern in proximity to the subject property could potentially affect said property. /'The Surface and Subsurface Contamination approaches, but does not encompass the requirements of a Phase I Environmental Site Assessment (ESA) as promulgated by the American Society of Testing and Materials (ASTM E-1527-00). The Environmental Health Department recognizes that the Surface and Subsurface Contamination Report is not intended to completely fulfill the requirements of the Phase I ESA. The Department does however, maintain that certain components of the Phase I ESA must be applicable to the SSCR, as follows: Section 7.1.7 of the ASTM Document states under"Sources of Standard Source Information," that "information or other record information from government agencies may be obtained directly from appropriate government agencies or from commercial services." Page -2- Chesney Consulting